Narita, Japan – Hisashi Moriguchi is mobbed by the media upon his return to Japan from U.S. at Narita Airport, east of Tokyo, October 15, 2012. The 48-year-old researcher made a false claim that he had carried out the world’s first clinical trial using a trailblazing stem cell technology. Moriguchi said last week that he performed treatment using iPS cells, which have the potential to grow into any type of body tissue, on six people but later admitted in a news conference in New York that most of his claim was false. (Photo by AFLO)

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Narita, Japan – Hisashi Moriguch returns to Japan from U.S., arriving at Narita Airport, east of Tokyo, on Monday, October 15, 2012. The 48-year-old researcher made a false claim that he had carried out the world’s first clinical trial using a trailblazing stem cell technology. Moriguchi said last week that he performed treatment using iPS cells, which have the potential to grow into any type of body tissue, on six people but later admitted in a news conference in New York that most of his claim was false. (Photo by AFLO)